Everyone likes Ultrasonic range finder. This is the bracket for this useful distance sensor, enable you to mount the sensor to your mobile robot or project easily. 

 Ultrasonic HC-SR04 Distance Sensor is not included.

Specification:
Thickness: 2.8-3.1mm
Internal diameter: 16mm
Fixed orifice diameter: 3.8MM
Material: Imported Acrylic
Usage: To fix untrasonic modules. etc